The Comparative Analysis :

BMW 840i Cabrio xDrive Steptronic (19 - ..) vs. Porsche 911 Carrera Cabriolet 4 (08 - 12)

€ 105,800
BMW 840i Cabrio xDrive Steptronic (19 - ..) BMW 840i Cabrio
€ 103,600
 Porsche 911 Carrera Cabriolet 4 (08 - 12) Porsche 911 Carrera Cabriolet 4
€ 105,800
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 103,600

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The BMW 840i Cabrio is considerably bigger in every dimension. It's 40.8 cm longer, 5 cm wider and 2.9 cm taller than the Porsche 911 Carrera Cabriolet 4.
BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4
1339
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
1902
2137
1310
Blueprint Porsche 911 Carrera Cabriolet 4 (08 - 12)
1852
2052
1902 mm
Width
1852 mm
2137 mm
Width Incl. Mirrors
2052 mm
1339 mm
Height
1310 mm
Blueprint BMW 840i Cabrio xDrive Steptronic (19 - ..)
2822
4843
Blueprint Porsche 911 Carrera Cabriolet 4 (08 - 12)
2350
4435
4843 mm
Length
4435 mm
2822 mm
Wheelbase
2350 mm

Vehicle Weight

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4
1955 kg
Kerb Weight
1630 kg
2400 kg
Gross Vehicle
Weight
1930 kg
BMW 840i Cabrio xDrive Steptronic (19 - ..)
Weight Difference:
325 kg
16.62 %
Porsche 911 Carrera Cabriolet 4 (08 - 12)

General

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4
G14
Generation
997
Convertible
Car Body Style
Convertible
Super Unleaded (98 RON)
Fuel Type
Super Unleaded (98 RON)
Permanent all-wheel drive
Drive
Permanent all-wheel drive
8-speed automatic transmission
Transmission
6-speed manual transmission

Engine

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4
Straight-six petrol engine with tur­bo­charger
Engine Type
6-cylinder boxer petrol engine (nat­u­ral­ly as­pi­rat­ed engine)
BMW B58
Engine Series
B58-B30
Engine Code
4
Valves
4
6
Cylinders
6
2998 CC
Engine Capacity
3614 CC
335 bhp
at 5000 rpm
Power
340 bhp
at 6500 rpm
BMW 840i Cabrio
335 bhp
340 bhp
Porsche 911 Carrera Cabriolet 4
500 NM
at 1600 rpm
Max. Torque
390 NM
at 4400 rpm
BMW 840i Cabrio
500 NM
390 NM
Porsche 911 Carrera Cabriolet 4

Performance

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4
155 mph
Maximum Speed
176 mph
4.9 sec
Acceleration 0 to 62 mph
5.2 sec
62 mph 62
mph

68 m
0.000 sec

BMW 840i Cabrio

62 mph 62
mph

72 m
0.000 sec

Porsche 911 Carrera Cabriolet 4

▶ REPLAY
5.84 kg/bhp
Weight-to-Power Ratio
4.79 kg/bhp
BMW 840i Cabrio
5.84 kg/bhp
4.79 kg/bhp
Porsche 911 Carrera Cabriolet 4

Fuel Economy / Emissions

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4
Fuel Economy
37 mpg
combined
26 mpg
BMW 840i Cabrio
37 mpg
26 mpg
Porsche 911 Carrera Cabriolet 4
29 mpg
city
17 mpg
No data
motorway
37 mpg
Kraftstoffanzeige
68 L
Fuel Tank Capacity
67 L
Kraftstoffanzeige
549 mi
Range
385 mi
BMW 840i Cabrio
549 mi
385 mi
Porsche 911 Carrera Cabriolet 4
Environmental Impact
145.8 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
204.5 kWh
BMW 840i Cabrio
145.8 kWh
204.5 kWh
Porsche 911 Carrera Cabriolet 4
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 5
205 g/km (WLTP)
CO2 Emissions
254 g/km (NEFZ)

Practical Convenience

BMW 840i Cabrio
Porsche 911 Carrera Cabriolet 4
2
Doors
2
4
No. of Seats
4
445 kg
Maximum Payload
300 kg
350 L
Boot Capacity
105 L
No data
Boot Capacity (Seats Down)
No data